SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
da-sch.at
SSL/TLS Certificate
SSL/TLS Certificate for da-sch.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- da-sch.at
- Valid from
- Oct 31, 2026
- Valid until
- Jan 29, 2027 (79 days remaining)
- Public key
- EC 256-bit
- Serial
- 05E6C1BE3C0ED8AE5C9DDE7222A6FFFA38E8
- SHA-256 fingerprint
- 8D:7A:89:0B:38:62:15:20:AA:E3:9B:37:48:1A:3A:17:F7:14:80:E7:76:B5:45:CE:9E:C6:50:FE:C6:68:4A:82
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Nov 10, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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